Working on a project bike, 82 cb750c, was testing for continuity, hooked up battery and my harness immediately started smoking, didn't get it disconnected fast enough, and the little wire (neutral switch?) coming off of my pulse generator caught completely on fire. I've since learned that that wire is built into the pulse generator and I need to replace the entire thing. Any thoughts on WHY it would have been the thing to catch fire? Would hate to replace it and just melt it again.